For pursuing a Master's in Computer Science in Europe, several universities are highly recommended, particularly for interests in Theoretical Computer Science, algorithms, data structures, and machine learning. Notable institutions include ETH Zürich and EPFL Lausanne in Switzerland, TU Delft and Leiden University in the Netherlands, Karlsruhe Institute of Technology and TU München in Germany, KTH in Sweden, and Aarhus and Copenhagen universities in Denmark. These universities are recognized for their strong programs and research opportunities in the specified fields.